#include<iostream>
using namespace std;
int main()
{
	int n;
	cin >> n;
	if (n % 2 == 0)
	{
		cout << "even";
	}
	else
	{
		cout << "odd";
	}
	/*if (n & 1)
	{
		cout << "odd";
	}
	else
	{
		cout << "even";
	}*/
	return 0;
}